ANSWER
B. x=3,y=2
EXPLANATION
The given equations are
[tex]x - 3y = - 3...(1)[/tex]
and
[tex]x + 3y = 9...(2)[/tex]
We add the two equations to eliminate y.
This implies that that:
[tex] x + x - 3y + 3y = 9 + - 3[/tex]
Simplify:
[tex]2x = 6[/tex]
Divide both sides by 2.
[tex]x = 3[/tex]
We put x=3 into any of the equations to find y.
Let us substitute x=3 into equation (1) to get:
[tex]3 - 3y = - 3[/tex]
[tex] - 3y = - 3 - 3[/tex]
[tex] - 3y = - 6[/tex]
Divide both sides by -3 to get;
[tex]y = 2[/tex]
The solution is therefore x=,y=2.
